Fuel economizer for explosion engines



, 1923. 1,469,8fifi R. C. WATTELLIER v FUEL EGONOMIZER FOR EXPLOSIONENGINES Filed June 8, 1921 2 Sheets-Sheet 1 R. c. WAT-TELLIER FUELECONOMIZERFOR EXPLOSI ON ENGINES Filed June'8, 1921 2 Sheets-SheetPatented Oct. 9, 1923.

UNITED STATES RENE CHARLES WATTELLIER, OF SAMOIS-SUR-SEINE, FRANCE. i

. FUEL ECONOMIZER FOB EXPLOSION ENGINES.

Application tiled June 8,

- To all whom it may 00mm.-

Be it known that I, Rem: CHARLES WAT- TELLIER, citizen of the FrenchRepublic, residing at Samois-sur-Seine, Seine and Marne, in theiRepublicof France, have invented new and useful Improvements in FuelEconomizersfor Explosion Engines, of which the following is aspecification."

This invention relates to afuel economizer for explosion engines, bymeans of which an amount of air may be automatically introduced into theintake'pipe of the engine at a point between the throttle and theadmission valve at the same time as thethrottle is opened and inproportion to the extent of the opening movement of the latter, wherebya better utilization of the charge is obtained and consequently aneconomy is realized in the fuel consumption of the carburetter.

A characteristic feature of this economizer resides in that it comprisesa casing adapted to be mounted on the intake pipe of the engine at apoint between the throttle and the admission valve, said casing beingprovided with an air passage which is controlled by a rotatable discplate provided with a port and connected by a flexible transmission to amember controlling the throttle.

Other features of the invention will appear from the followingdescription.

In the accompanying drawings given by we. of example:

liig. 1 is a section through the axis of the fuel economizer constructedin accordance with the present invention.

Fig. 2 is a plan view of the same, the carburetter being removed.

Fig. 3 is a plan view.

Fig. 4.- shows the apparatus mounted on the intake pipe of an engine.

Fig. 5 is an axial section corresponding to Fig. 1 and showing amodified construction.

Fig. 6 is a diagrammatic view of the economizer together with thecontrolling members for the same.

As shown in Figs, 1 to 4, the apparatus comprises a casing 1 providedwith a screwthread'ed tubular rojection 5 by means of which it issecured to a neck 6 (Fig. 4) providedon the intake pipe 7 of the engineat a point between the throttle 23 and the admission valve not'shown. Anut 8 ensures the fixation. The bottom wall 4 of 1921. Serial No.475,931.

the casing is provided with a hole 5 which extends through the tubularprojection 5 and through which the air will pass into the intake pipe 7.The casing 1 is provided with a flat recess 9 in which a disc plate orobturator 2 is rotatably supported. The bottom wall of said recess 9maybe provided with shallow arcuate recesses 10. Upon the casing, issecured by means of screws 11, a cover 12 provided with holes 13 for theinlet of air and carrying a boss 14 in which the end of a flexibletransmission 15 is guided.

The disc plate 2 is mounted on a central screw or pivot 16 supported bythe bottom 4 of the casing. Through the disc plate extends an oblong orwedge-shaped, designed opening 17 (Fig. 2) which is adapted to registerwith a hole 5 of the casingwhen the plate 2 is oscillated, and willcoincide with said hole in the opened position of the apparatus. Thedisc plate is carefully dressed in order to ensure a tight joint and itis constantly urged to its closing position by a spring blade 18 securedto an arm 19 which is itself secured to the disc plate, said springblade bearing upon a stud 20 secured to the cover '12. A'yielding spider21, with four branches, held by the screws 11 bears, at'its centralpart, upon the head of the central screw 16, and holds the disc plate '2in contact with the bottom of the casing 1. To the lever 19, is securedthe controlling flexible wire within the tube 15,

said wire being connected at its other end to the lever 22 (Fig. 4.)operating the throttle 23 .of the 'carburetter. The lever 19 moves inanotch formed in the upper edge 24 oi the casing.

A supporting'yoke 3 secured to the easing 1 carries an oscillating lever25 by means of which the-lever 19 may be locked in the closing positionof the disc plate; said lever is actuated by means of a flexible wirewithin the tube 26, said wire being secured to tle 23 through the mediumof the flexible cable 15 and thelever 1 9, is turned in the passage 5 ofthe casing 1, whereby an amount of air is introduced into the intakepipe in proportion, as the passage 5 is un covered and the throttle 23is opened.

In the modified construction shown in Figs.v 5 and 6, the casingaof theeconomizer is closed by a plate 05 carrying a screwthreaded tubularprojection d through which a passage j extends. Said projection carriesa nut e and a washer f and is used as in the above construction for thepurpose of securing the apparatus upon the intake pipeof the engine.

Upon the bottom plate d of the casing, is rotatably mounted therotatable disc plate or obturator it which is carefully dressed andpressed upon the plate 05 by a coil spring g.

The disc plate It is provided with an oblong opening m which maycoincide with the circular passa e -j. It is" actuated by a flexiblecable is whlch passes through a guide 01. and is connected to theaccelerator or other member controlling'the throttle of the en-;;,

gine. A. spiral spring 21 tends to bring the disc plate It to itsclosing position. By

means of said arrangement, an additional whereby theangular position ofthe discv plate 72. in the casing may be variedat any instant, so as tochange the amount of air drawn in, independently of the action of themember controlling the throttle. F or this purpose, the operating cableis passes around a uide pulley 0 having a fixed axis and a ti teningpulley Z. The pulley Z is carrie by a yoke member I) which is pivoted onthe shaft of the pulley c. The yoke b may be angularl displaced in thedirection of the arrow Fig. 6) by means of a flexible cable p operatedby a handle 9 secured either to the steering wheel or to the dash boardof the vehicle. The pulley '1 can thus be bodily displaced around theaxis of the pulley c. It will thus act to tighten the cable is, wherebya rota-r movement will be imparted to the disc p ate h. By this means,the passage ofl'ered to the air through the hole j and the opening mwhen the cable 7c is pulled will be increased. The opening m has suchdimensions that the operation of the engine will be rendered mostflexible an amount of air proportional to the charge drawn in'beingintroduced for each speed of the engine. By means of the handle 9 andwhatever the working conditions of the engine may be, the driver is thusenabled to 1,eee,sei

the apparatus continuing to act thereafter automatically. Means are thusprovided for adjusting the amount of air necessary to the engine in aninstantaneous and easy manner.

It will be seen that the purpose of the apparatus is to obtain aneconomy of fuel and also to increase the flexibility and power of theengine. In addition thereto it enables to use with the same en inedifl'erent fuels such as gasoline, benzo para or spirit, aninstantaneous adjustment being possible. 4

The invention is not limited of course to the constructive arrangementsshown or described. F or instance, the tightening pulley Z might bereplaced by any other suitable tightening device.

Having now described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. A fuel economizer for explosion engines comprising a casin aneccentrical tubular projection on sai casing adapted to be securedtotheintake pipe of the engine and connecting the capacity of the easmg tothe said intake pipe, means for admittin outer air into said casing, arotatable disc p ate-in the casing provided with a port registering withthe inlet of said tubular projection, a flexible transmission foroperatively connectin said disc Plate to a member controlling t ethrottle of the engine and means for producing a bend in said flexibletransmission and thereby displace angularly the disc plate independentlyof the action of the throttle valve actuating member.

2A fuel economizer for explosion engines comprising a casin aneccentrical tubular projection on sai casing adapted to be secured tothe intake pipe of the engine and connecting the capacity of the casingto the said intake pipe, means for admitting outer air into said casing,a rotable disc plate in the casing provided with a port registering withthe inlet of said tubular projection, a flexible transmission foroperatively connecting said disc plate to a'member controllin thethrottle of the engine, a guide pul ey for said flexible transmission,astationary shaft for said guide pulle', a yoke pivotally mounted on saidsha t, a second guide pulley carried by said yoke and means fordisplacing the yoke angu larly so as to stretch the flexibletransmission and angularl displace the said disc plate inde endent y ofthe action of the throttle va ve actuating means.

in testimony whereof I have signed my" name to this specification.

RENE CHARLES WATTELLTER.

